• 제목/요약/키워드: environmental subject

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지구 온난화 교육 프로그램이 초등학생의 환경적 태도와 환경적 지식 성취도에 미치는 효과 (Effect on the Environmental Attitude and Knowledge Accomplishment of Elementary Students by Educational Programs about Global Warming)

  • 김용근;김정인
    • 한국환경교육학회지:환경교육
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    • 제21권2호
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    • pp.11-24
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    • 2008
  • This research verifies the effect on environmental attitude and knowledge accomplishment by t-test as producing and running programs regarding global warming which is raised as a representative environmental issue subject to 6th grade-elementary students. For this, environmental education programs about global warming for elementary students are developed and applied 15 times by reconstituting classes based on the contents regarding global warming from the text books revised as of 7th course of study. The result is as below. First, some part of contents from social study and science of 6th grade elementary curriculum of 7th course of study was able to be reconstituted to 15 education programs. Secondly, the programs about global warming improved students' environmental attitude Application of the programs about global warming showed significant difference(p<.05) on building environmental attitude as it proved those are effective on both area of recognition level and practice level. The method used on the test had .866's Cronbach alpha modulus value therefore, it obtained reliability. Thirdly, the programs regarding global warming improved students' knowledge accomplishment. As a result of test for knowledge accomplishment which was executed with same method for attitude test, the application of the programs about global warming showed significant difference(p<.05) on improving students' knowledge accomplishment on the global warming therefore, it resulted that the application of the program is effective on knowledge acquirement.

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환경물질을 제외한 전자부품의 신뢰성평가 방법 연구 -Pb와 Br을 제거한 PWB를 중심으로- (Reliability Assessment Methods for Electronic Component Removed Environmental Materials - focused on Printed Wiring Board without Pb and Br -)

  • 이종범;조재립
    • 한국신뢰성학회:학술대회논문집
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    • 한국신뢰성학회 2005년도 학술발표대회 논문집
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    • pp.393-404
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    • 2005
  • The environmental problem is a main subject of the 21C and an environment destruction phenomenon by various kinds of environmental materials is reaching serious level. Nations to be classified as the environmental developed country, are born again environmental rich country. And they earn a large income by trade Every kind environmental resource in an international commercial transaction. Especially, the study that a reliability assessment method to prevent to reliability problem to be happened when the solder lead(lead-free solder), non-cd component, non-bromide component(without the polybrominated biphenyls(PBB) and polybrominated diphenyl ethers(PBDE))and hexavalent chromium(Cr VI) clearance component and mercury-free applied to electronic equipment is progressed. As the result of the study for applying of a reliability assessment technique of lead-free solder that recognized the most of urgent problem at the company, combination accelerated life test could taken by adding and appling the part of a humidity acceleration part to Eyring Model which is proposed by R.E.Thomas. The reliability assessment methods study of PWB clean environmental materials is expected to respond to a reliability elevation and environmental material regulation policy spreading all over the world by beginning form Europe.

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산림조성을 기반으로 한 기업의 생물다양성 보전 활동 분석: KT&G의 사례를 중심으로 (Evaluating Biodiversity Conservation Activities by Corporations Based on Afforestation: KT&G)

  • 김건희;조유라;이재혁;옥용식
    • 한국환경과학회지
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    • 제33권6호
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    • pp.345-353
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    • 2024
  • As biodiversity loss has been highlighted as a global risk, biodiversity activities are gaining attention as a part of companies' Environmental, Social, and Governance (ESG) related management. This study evaluates various biodiversity activities of corporations based on domestic and international indicators. We present the role of corporations expressly in afforestation activities and suggest additional information that should be disclosed for the accurate verification of environmental values by third parties. KT&G was selected as the subject of the evaluation. The 4th National Biodiversity Strategy was used as a domestic indicator, and GRI Standard 304 as an international indicator. Companies can play a leading role in planning, implementing, and monitoring afforestation activities and should further disclose the species composition of the forests created and the age of the seedlings to enhance the credibility of the environmental values stated in their sustainability reports.

회분식 공정-저장조 그물망 구조의 최적설계 (Optimal Design of Batch-Storage Network)

  • 이경범;이의수
    • 제어로봇시스템학회논문지
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    • 제4권6호
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    • pp.802-810
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    • 1998
  • The purpose of this study is to find the analytic solution of determining the optimal capacity of processes and storages to meet the product demand. Recent trend to reduce product delivery time and to provide high quality product to customer requires the increasing capacity of storage facilities. However, the cost of constructing and operating storage facilities is becoming substantial because of increasing land value, environmental and safety concern. Therefore, reasonable decision making about the capacity of processes and storages is important subject for industries. The industrial solution for this subject is to use the classical economic lot sizing method, EOQ(Economic Order Quantity) model, trimmed with practical experience but the unrealistic assumption of EOQ model is not suitable for the chemical plant design with highly interlinked processes and storages. This study, a first systematic attempt for this subject, clearly overcomes the limitation of classical lot sizing method. The superstructure of the plant consists of the network of serially and/or parallelly interlinked processes and storages. A novel production and inventory analysis method, PSW(Periodic Square Wave) model, is applied. The objective function of optimization is minimizing the total cost composed of setup and inventory holding cost. The advantage of PSW model comes from the fact that the model provide a set of simple analytic solution in spite of realistic description of material flow between process and storage. The resulting simple analytic solution can greatly enhance the proper and quick investment decision for the preliminary plant design confronting diverse economic situation.

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PNF를 이용한 보행 훈련이 만성 뇌졸중 환자의 균형 및 보행에 미치는 영향(단일사례설계) (Effect of Gait Training Using PNF on Balance and Walking Ability in Person with Chronic Stroke(Single Subject Design))

  • 이문규;윤태원;김윤환;임재헌
    • PNF and Movement
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    • 제10권1호
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    • pp.43-52
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    • 2012
  • Purpose : The purpose of this study was to observe the effect of a gait training using PNF on a gait and balance ability of a person with chronic stroke. Methods : The subject was left hemiplegia due to cerebral infarction. The subject participated in PNF gait training session as well as baseline for 30 minutes a day for 4 weeks. we used the 10-meter walking test(10MWT), figure-8-of walk test(F8WT), dynamic gait index(DGI) for measuring the gait ability and four square step test(FSST), Berg balance scale(BBS) for measuring the balance ability through the whole sessions. Results : The gait ability was enhanced compared to first baseline, as measured by 10MWT(27.3%), F8WT(36.6%), DGI(8 points increased). The balance ability was improved compared to first baseline, as measured by FSST(49.1%), BBS(10 points increased). The increase was maintained in second baseline session. Conclusion : The PNF gait training program is helpful to enhance the adaptation of the gait and balance according to the various environmental demands.

2000년대 이후 한국 아동·청소년 과학소설의 디스토피아 연구 (A Study on the Dystopia of Korean Juvenile Science Fiction Since the 2000s)

  • 최배은
    • 대중서사연구
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    • 제26권1호
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    • pp.103-132
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    • 2020
  • 이 연구는 2000년대 이후, 한국 아동·청소년 과학소설에 제시된 디스토피아의 특징과 의미를 분석하여 국가산업자본주의와 결탁한 과학주의의 모순에 대응하는 아동·청소년 문학의 원리를 탐구하고 그 의의와 한계를 고찰하였다. 대상 작품은 체제 디스토피아를 배경으로 하여 그에 저항하는 아동·청소년 서사의 비중이 높다. 체제 디스토피아는 '가짜 유토피아'와 거기서 배제된 사람들의 집단인 '수용소'로 이루어져 있다. 체제 디스토피아에서 생명권을 침해당한 청소년들은 정치권력에 저항하여 수용소에서 탈출하고 투쟁한다. 환경 디스토피아를 중점적으로 탐구한 것은 많지 않지만, 환경오염이나 핵폭발 이후의 지구를 배경으로 한 작품에서 유목적 주체가 발견된다. 요컨대 아동·청소년 디스토피아 과학소설은 과학기술주의 계급사회의 모순을 심화시켜 우리 사회의 억압적, 물질중심적, 차등적 교육현실을 비판한다. 그리고 아동·청소년들이 그 체제의 기만과 위선을 간파하여 저항주체로 행동하기 바란다. 이 작품들은 산업자본주의와 결탁한 정치권력의 생명정치 전략을 폭로하고 성찰하게 한다는 점에서 의의가 있다. 하지만 인간의 생명을 자연과 동일시하고 그 대척점에서 과학기술과 기계, 물질문명의 위험성을 경고하는 것은 이분법적 가치관의 한계로 보인다. 이 논문은 2000년대 이후 아동·청소년 디스토피아 과학소설의 양상을 개관하고 작가들의 과학기술주의에 대한 인식 및 한계를 밝힌 의의가 있다.

지구온난화 최소화를 위한 신재생 에너지들의 잠재환경영향 (Identification of Potential Environmental Impacts among Renewable Energy Technologies Promising to Minimize Global Warming)

  • 김용범;정용
    • 환경영향평가
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    • 제17권1호
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    • pp.67-79
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    • 2008
  • Global warming, which is one of the most serious challenges, has been the subject of intense debate and concern for many scientists, policy-makers, and citizens for at least the past decade. To protect the health and economic well-being of current and future generations, we must reduce our emissions like carbon dioxide. Alternatives to achieve an energy future without serious global warming are to change to clean and renewable sources of energy like the wind, the sun lights, rivers, the biomass, hydrogen, and oceans. To identify some of the key and new environmental impacts associated with renewable energy and hydrogen energy, we set up the new conceptual methodology. Specifically, new identified environmental and health impacts are related with the usage of hydrogen energy. When comparing with fossil fuel, the renewable energies can reduce the release of carbon dioxide when they are used except hydrogen produced from fossil fuel. However, all renewable energy technologies are not appropriate to all applications or locations. Our results suggest that all of alternatives to replace fossil fuel can release the several global and local impacts although they seems to be smaller than the impacts from fossil fuel. Therefore, the quantitative and detail analysis to assess environmental impacts of the alternative energies might be useful to make our decision for the future energy against the global warming.

대중매체의 환경교육적 활용 가능성에 관한 고찰 (A Survey on the Application Possibility of Mass Media for Environmental Education)

  • 이재영;김인호;이선경
    • 한국환경교육학회지:환경교육
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    • 제9권1호
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    • pp.30-38
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    • 1996
  • The purpose of this study was to survey on the awareness of teachers and students to mass media as a source for school environmental education. This study was performed with the questionnaire to 179 teachers who participated in certificate in-service training for $\ulcorner$Environment$\lrcorner$subject and to 635 students(primary: 177, middle: 179, high school students: 279). The results derived from this study were as follows: First, most teachers(86.6%) evaluated that mass media's effects on students were high and positive in terms of school environmental education, thus they thought that the application necessity and possibility of mass media for environmental education were so too. Second, many teachers evaluated that more program related with environment had to be produced(57.0%) and disseminated, and information on them had to be apprised teachers to activate school environmental education(44.1%). Third, both teachers(87.1%) and students(70.4%) evaluated that audio-visual media such as television, video, movie was better than others for environmental education because audio-visual media could be more realistic and dynamic(T: 48.0%, S: 41.7%). Fourth, we found that as the result of statistical analysis, students's friendliness. credibility and preference on media were different to school classes. But we could not analize the relationship between factors for the limit of sample.

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초.중등학교에서 진행되는 환경 관련 수업의 현황 분석 (Analyzing the Status of Environment-related Teaching in Elementary and Secondary Schools)

  • 손연아;박정은;민병미;최돈형
    • 한국환경교육학회지:환경교육
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    • 제20권3호
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    • pp.45-62
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    • 2007
  • The purpose of this study was to analyze the status of environment-related teaching in elementary and secondary schools. A questionnaire survey was conducted for the study. Items in the questionnaire were developed based on the theory of environmental education and integrated education. The questionnaire was responded to 501 elementary school teachers, 273 middle school teachers, and 210 high school teachers in the city of Seoul and Kyunggi Province. The survey analysis revealed that elementary and secondary school teachers recognized 'environmental action skills' as the most important objective for school environmental education. Contrary to the teachers' expectations, it was found that there is insufficient teaching and learning materials for teaching in the domain of 'environmental action skills' and they could not confidently teach the skills in environment-related classes. For professional development of teachers in integrated environmental education, pre- and in-service programs will be developed systematically in a workshop to give teachers an opportunity to analyze teaching materials, design instruction plan, perform class trial, and evaluate the class situation for feedback. The results of this study can serve as a basic reference for improvement of environment-related subject education.

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영월댐 건설 문제를 둘러 싼 환경교육과 학생들의 비판적 견해와 환경가치에 대한 정성적 이해 (A Qualitative Understanding of the Critical Opinion and Environmental Values of College Students meeting the Young-Wall Dam Issue)

  • 구수정
    • 한국환경교육학회지:환경교육
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    • 제12권1호
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    • pp.276-293
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    • 1999
  • An environmentally hot issue has arisen from the plan of Young-Wall Dam Construction at Tong river in Korea lately. The point at issue is which value is bigger between the water conservation for human use in future and the ecosystem protection for the intrinsic value of nature including animals and plants there. The purpose of this study is in the qualitative understanding of college students' critical thinking ability and opinion and the environmental values of them through the analysis of their writings. Various environmental values written in the 7th revised national curriculum of Korea are used as a criteria to investigate students' environmental values in their written opinions. Various environmental values are shown up to be handled such as the anthropocentrism, ecocentrism, pro-technology etc. Students of Dept. of Environment Teaching in the Kongju National University are the subject of this study. It shows that they have a deep understanding of the Young-Wall Dam issue and assert their opinions objectively and critically. Most of them(89.5%, n=17) are against the constructional plan of the Young-Wall Dam. Students who are for the plan are proved to have pro-technology value only and the others who are against to have various values including deer ecology.

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